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/* ----------------------------------------------------------------------------
*
* (c) The GHC Team, 1998-2004
*
* Time values in the RTS
*
* To understand the structure of the RTS headers, see the wiki:
* http://ghc.haskell.org/trac/ghc/wiki/Commentary/SourceTree/Includes
*
* --------------------------------------------------------------------------*/
#pragma once
// For most time values in the RTS we use a fixed resolution of nanoseconds,
// normalising the time we get from platform-dependent APIs to this
// resolution.
#define TIME_RESOLUTION 1000000000
typedef int64_t Time;
#define TIME_MAX HS_INT64_MAX
#if TIME_RESOLUTION == 1000000000
// I'm being lazy, but it's awkward to define fully general versions of these
#define TimeToMS(t) ((t) / 1000000)
#define TimeToUS(t) ((t) / 1000)
#define TimeToNS(t) (t)
#define MSToTime(t) ((Time)(t) * 1000000)
#define USToTime(t) ((Time)(t) * 1000)
#define NSToTime(t) ((Time)(t))
#else
#error Fix TimeToNS(), TimeToUS() etc.
#endif
#define SecondsToTime(t) ((Time)(t) * TIME_RESOLUTION)
#define TimeToSeconds(t) ((t) / TIME_RESOLUTION)
// Use instead of SecondsToTime() when we have a floating-point
// seconds value, to avoid truncating it.
INLINE_HEADER Time fsecondsToTime (double t)
{
return (Time)(t * TIME_RESOLUTION);
}
Time getProcessElapsedTime (void);
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